application =
{
	content =
	{
		width = 750,
		height = 1334, 
		scale = "letterbox",
		fps = 60,
	},
}

local pixelWidth = display.pixelWidth
local pixelHeight = display.pixelHeight

local maxRatio = 2

local minRatio = application.content.height/application.content.width

local realRatio = pixelHeight/pixelWidth

-- 小于最小比例，则左右两边有黑边
if realRatio < minRatio then
	
elseif realRatio > minRatio then
	if realRatio > maxRatio then
		application.content.height = application.content.width*maxRatio
	else
		application.content.height = application.content.width*realRatio
	end
end


